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Online since: October 2014
Authors: Marian Flimel
Obtaining the data on the apartment and the analysis of ambient noise, I.
Table 1: Determining partial indexes of VAP by legislation of the Slovak Republic Indicator Value Legislative permissible value given in : Determine the partial index VAP - Ix A1 L Aeq, 2m – equivalent pressure level off traffic noise two meters in front of the facade [dB] Local Ordinance Ministry of Health of the Slovak Republic 549/2007 IA1 = LAeq,2m,a : L Aeq, 2m,d A2 L Aeq, 2m - equivalent pressure level from other noise sources two meters in front of the facade [dB] 549/2007 IA2 = LAeq,2m,a : L Aeq, 2m,d B1 Rw´ - apparent sound reduction index of building construction [dB] Standard - STN 73 0532 IB1 = Rw,d´ : Rw,a´ B2 Ln,w - weighted normalized impact sound pressure level of floor structure [dB] STN 73 0532 IB2 = Ln,w,a : Ln,w,d C T - reverberation time of room [s] STN 730527 Ic = T opt,a : Td D L Aeq,i - equivalent pressure level in the interior from exterior noise sources [dB] 549/2007 ID = LAeq,i,a : LAeq,i,d E L Amax,i - maximum noise level in the interior
Such a significance is possible to confirm by following data: · Each residential area – flat, makes an individual living space for society of people and is characterized by location (urban area), location in multiple dwelling house and its dispositional layout.
Online since: November 2011
Authors: Yi Chao Zhu, Shuang Qiu, Jun Chao Shi, Wei Wang
Tab.1 Corresponding channel capacities K 0.1 0.5 1.0 1.5 2 0.201 0.12 0.0654 0.0358 3 0.243 0.168 0.109 0.0713 4 0.272 0.205 0.147 0.106 5 0.290 0.232 0.178 0.136 6 0.298 0.251 0.201 0.161 From the above data, it can be concluded that the channel capacity C have something to do with thermal photon numbers and average signal photon numbers K. when the K is constant, the channel capacity C increases as the thermal photon numbers diminishes.
H, Optical communication with two-pho ton coherent states—part I: quantum state propagation and quantum noise reduction, IEEE Trans.
Online since: October 2011
Authors: Shao Hui Ren, Yi Jing Zhou
For such a complicated region, we must clarify the needs and the nuclear data analysis for this region to make a reasonable plan.
By means of controlling the important landscaping part, location and spacial connection as well as protecting the inhabitancy, it recovers a kind natural atmosphere, prevent the reduction of species, the pollution of the air and natural disasters results from the devastation of ecology.
Online since: April 2011
Authors: Tao Wu, Kai Ge Fu
The virtual instrument is a new concept of apparatus, which utilizes general computer as the core hardware platform and other relative hardware such as data acquisition card as I/O interface.
Gurleyuk, Zonguldak, Turkey, “Vibration reduction in a step motor using optimal control time intervals and amplitudes” Acta Mechanica, vol.177(2005), p.137–148
Online since: November 2011
Authors: Gen Guang Jia, Xin Ling, You Guang Zheng, Ling Zhang, Sai Li, Ling Shan Gou, Yi Liu
Similarly, when copper is removed using sodium borohydride, heat generation during bulk production of protected amino acids and on a few occasions the reduction of protected esters to alcohols are problems.
Preparation of side-chain protected lysine, ornithine from their complexes using ferrous sulfide Entry Producta Yield [%] 1 H-Orn(Z)-OH 93 2 H-Orn(Fmoc)-OH 88 3 H-Orn(Acetyl)-OH 85 4 H-Orn(Phthalyl)-OH 87 5 H-Orn(Boc)-OH 90 6 H-Lys(Z)-OH 91 7 H-Lys(Fmoc)-OH 87 8 H-Lys(Acetyl)-OH 85 9 H-Lys(Phthalyl)-OH 89 10 H-Lys(Boc)-OH 88 aThe 1H NMR data of the isolated products were identical to those of authentic samples.
Online since: December 2011
Authors: Yong Chang Liu, Xin Jie Di, Lei Lei Wang
Therefore, accurate prediction and reduction of welding residual stress is critical in improving the quality of welding structure.
On cooling, the martensitic transformation is described using the Koistinen–Marburger relationship [6] (1) where P is proportion of phase martensite; Ms is beginning temperature of the martensitie transformation; T is the temperature and b is parameter obtained by fitting experimental data.
Online since: August 2012
Authors: Carlos Nelson Elias, Claudinei dos Santos, Andréa Mattos Melo
Table 1: Data from the bending test at three points.
Despite the small number of samples may be associated with the polishing phase transformation and consequent reduction of the bending resistance of some polished samples.
Online since: January 2014
Authors: Tian Hao Wang, Jie Liu, Jian Nong Huang, Li Yu Fang, Zhi Feng Dong
So the reduced service life of the cutting arm, increased maintenance costs, reduction in production efficiency and the vibration in the work process became an increasingly focus [4].
Figure 4 3D solid model of EBH300 Roadheader The Natural Frequencies and Modes of Cutting Parts The natural frequencies data of each part were calculated with finite element software ANSYS.
Online since: February 2013
Authors: Lin Li, Jun Luo, Chang Ji Shan
It can be seen from Fig.4 and Fig.5 directly the hydraulic muffler internal points of pressure and flow changes and if you want to acquire some special points on the linear data, you can realize that through the control of grid
[3] Hong, Du, Li, Li: An Analysis and Study of Luo Jian-min Muffler’s Noise Reduction and Engine’s Noises, Mechanical Design and Manufacture, 2009, p:23-25
Online since: February 2016
Authors: Su Juan Wang, Hong Jian Xia, W.C. Peng
The reduction of the thermal error becomes an important issue in ultra-precision machining area.
Then the data are disposed by using the BPN technique.
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